Glass-melting furnace



Patented June 18, 1889.

W. F. MODES.

GLASS MELTING FURNAGE.

V Mam 2 M WM W? (No Moden 2 Sheets-Sheet 2` (No Model.)

W P MODES GLASS MELTING FURNAGE.

Patented June 18, 1889 UNITED STATES PATENT OFFICE.

VVILLIAM F. MODES, OF STREATOR, ILLINOIS.

GLASS-MELTING FU RNACE.

SPECIFICATION forming part of Letters Patent No. 405317, dated June 18,1889. Application filed December-15, 1838. Serial No. 293,(373. (Nomodel.)

To all whom it may concern Be it known that I, WILLIAM F. MODES, acitizen of the United States, and a resident of Streator, county of LaSalle, and State of Illinois, have invented new and useful Improvementsin Glass-Melting Furnaces, of which the following is a specification,reference being had to the accompanying drawings (two sheets)illustrating the invention, in which- Figure I is a sectionalelevationof an im'- proved glass-melting furnace for which an application for apatent for some portion thereof was filed on September 11, 1888, SerialNo. 285,109, the section being taken on line 4, Fig. Il, Sheet 2; Fig.II, Sheet 2, a central longitudinal vertical section on line 5,Fig. I.Fig. III is a top View of the bridge-wall and broken secs tions' of thepartitions removed from the other parts of the furnace.

This invention relates to an improved bridgewall employed in aglass-melting furnace.

The novelty of the invention consists, in brief, of a bridge-wall fordividing the glasstanks of the furnacenvhich is provided longitudinallywith an internal air-channel, and on the upper side of the bridge-wallan d at each end is formed a pipe or opening, the one being for takingcold air into the bridge-wall and the Other for carrying off the heatedair, and thereby keeping cold air passing through the bridge-wall by acurrent of air taken in at the top of one end of such wall. It has beenthe custom to take the hot air outof the top portion of one end of thebridge-walls to glassfurnaces, and also the custon to take the cold airin at bottom of such wall and discharge the heated air in the samemanner substantially as I do 5 but practical experiments havedemonstrated that the shorter the pipe which conducts the cold air tothe longitudinal hollow in the wall the cooler the bridgewall will bekept. In these furnaces the shortest distance to the hollow of such wallis between the arch over the tanks and the arches over thecheckerbrick-work and the gas-channels. It is therefore at these pointsthat the air-inlet and air-exit are formed. In practice itis found thatwhere cold air is taken in at the side of the furnace or at thebottomthereof the air becomes so heated before reachin g the bridge-wallthat it serves but little pur- U is the arch over the tanks, and L L thearch` over the checker-work D D and partitions K K. WV X are thebridge-walls which separate the tanks. As a matter of convenience, the

section X of said wall is a separate portion of fire-clay unitedproperly to the lower portion XV, which closely fits the bottom andsides G -of the tank, as clearly shown at Fig. I. The

ends of the section X extend through sides G and abut against thepartitions I-I H, which separate the side air-chambers I andgas-channels T and form gas-tight joints. The ends of the sections X,however, may extend into the partitions H, if desired, as a convenientConstruction. Longitudinally through the top section X of the bridge-wall is forned the usual hollow space b, and in the top of this sectionnear an end is formed a cold-air induction port or opening O, and theport is continued up through block 3, which unites the arches L U withthe top edge of the partition H and the top end portion of the sectionX, and also extends up through arch L. The opposite side of the furnacehas a like Construction to' that detailed above, 'as also has the otherend of section X of the bridge-wall, except a pipe d is made tocommunicate with the hollow b at that end to carry off the heated air toa stack f. The direction of the cold air coming in at O and escapingwhen heated is indicated by the darts n n. At Fig. II is represented a'series of blocks 3 at one side of the furnace,between which at S theflames of gas and airpas's to the furnace. The oppositeside of thefurnace has a like Construction.

The bridge-wall described is represented in a furnace which alternatelytakes air at side ports V' and alt-ernately takes gas through side channels T; but my improved bridge-wall,

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by the ordinary skilled mechanic, can be applied to any ordinarytwo-tauk glass-nielting furnace and serve the purpose herein set forth.Those elements shown and not elainc d in this application Will be heldas pertaining to the said application on file, as aforesaid.

I claim as new and dosire to secure by Letters Patentr- 1. In aglass-nelting furnace having gas and air supply chambers at each side,the combination, with a 'neiting-tank having an aircooling chanbersurrounding the same, of a bridge-wall partition conposed of aperforated lower section resting on the bottom of the tank, and a hollowupper section X, projecting through the sides of the tank and unitedwith partition-walls between the air-cooling chanber and gas-channels,substantially as described.

2. In a glass-neltingfurnacehaving gas and air supply chanbers at eachside, the combination, With a inelting-tank having an aircooing chanbersurrounding the same, of a bridge-Wall partition coinposed of aperforated lower section resting on the bottom of the tank, and a hollowupper section X, projecting through the sides of the tank and unitedwith partition-walls between the air-cooling chamber and gas-Channels,said upper section connecting with flues which extend vertically throughthe arch, and a pipe connected to one of said fines, said pipe leadingto a chinney above the level of the fine, substantially as and for thepurpose specified. i

XVILLIAM F. MODE..

XVitnesses:

G. L. CHAPIN, ANNA D. .ToI1Ns'N.

